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Park GY, Kim MJ, Oh JY, Kim H, Kang B, Cho SK, Choi WJ, Kim M, Ham DS. High-Throughput Roll-to-Roll Processed Large-Area Perovskite Solar Cells Using Rapid Radiation Annealing Technique. ACS Appl Mater Interfaces 2024. [PMID: 38738751 DOI: 10.1021/acsami.4c04153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
The development of a stable roll-to-roll (R2R) process for flexible large-area perovskite solar cells (PSCs) and modules is a pressing challenge. In this study, we introduced a new R2R PSC manufacturing system that employs a two-step deposition method for coating perovskite and uses intensive pulsed light (IPL) for annealing. This system has successfully fabricated small-sized cells and the first-ever large-sized, R2R-processed flexible modules. A key focus of our work was to accelerate the conversion of PbI2 to perovskite. To this end, we utilized IPL annealing and incorporated additives into the PbI2 layer. With these modifications, the R2R-processed perovskite films achieved a power conversion efficiency (PCE) of 16.87%, representing the highest reported value for R2R two-step processed PSCs. However, these cells exhibited hysteresis in reverse and forward PCE measurements. To address this, we introduced a dual-annealing process consisting of IPL followed by a 2-min thermal heating step. This approach successfully reduced hysteresis, resulting in low-hysteresis, R2R-processed flexible PSCs. Moreover, we fabricated large-scale flexible modules (10 × 10 cm2) with a PCE of 11.25% using the dual-annealing system, marking a significant milestone in this field.
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Affiliation(s)
- Geon Yeong Park
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- Department of Chemical Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Min-Jae Kim
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Engineering, Sungkyunkwan University, Suwon 16419, Korea
| | - Joon Young Oh
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Hoimin Kim
- SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Engineering, Sungkyunkwan University, Suwon 16419, Korea
| | - Boseok Kang
- SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Engineering, Sungkyunkwan University, Suwon 16419, Korea
| | - Seong-Keun Cho
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Woo Jin Choi
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Min Kim
- Department of Chemical Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Dong Seok Ham
- Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
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Jeon SB, Jeong PS, Kang HG, Kim MJ, Yun JH, Lim KS, Song BS, Kim SU, Cho SK, Sim BW. NEK2 plays an essential role in porcine embryonic development by maintaining mitotic division and DNA damage response via the Wnt/β-catenin signalling pathway. Cell Prolif 2024:e13626. [PMID: 38426218 DOI: 10.1111/cpr.13626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/02/2024] Open
Abstract
NIMA-related kinase 2 (NEK2) is a serine/threonine protein kinase that regulates mitosis and plays pivotal roles in cell cycle regulation and DNA damage repair. However, its function in porcine embryonic development is unknown. In this study, we used an NEK2-specific inhibitor, JH295 (JH), to investigate the role of NEK2 in embryonic development and the underlying regulatory mechanisms. Inhibition of NEK2 after parthenogenesis activation or in vitro fertilization significantly reduced the rates of cleavage and blastocyst formation, the numbers of trophectoderm and total cells and the cellular survival rate compared with the control condition. NEK2 inhibition delayed cell cycle progression at all stages from interphase to cytokinesis during the first mitotic division; it caused abnormal nuclear morphology in two- and four-cell stage embryos. Additionally, NEK2 inhibition significantly increased DNA damage and apoptosis, and it altered the expression levels of DNA damage repair- and apoptosis-related genes. Intriguingly, NEK2 inhibition downregulated the expression of β-catenin and its downstream target genes. To validate the relationship between Wnt/β-catenin signalling and NEK2 during porcine embryonic development, we cultured porcine embryos in JH-treated medium with or without CHIR99021, a Wnt activator. CHIR99021 co-treatment strongly restored the developmental parameters reduced by NEK2 inhibition to control levels. Our findings suggest that NEK2 plays an essential role in porcine embryonic development by regulating DNA damage repair and normal mitotic division via the Wnt/β-catenin signalling pathway.
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Affiliation(s)
- Se-Been Jeon
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
- Department of Animal Science, College of Natural Resources & Life Science, Pusan National University, Miryang, Republic of Korea
| | - Pil-Soo Jeong
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
| | - Hyo-Gu Kang
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Min Ju Kim
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
- Department of Animal Science, College of Natural Resources & Life Science, Pusan National University, Miryang, Republic of Korea
| | - Ji Hyeon Yun
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
- Department of Animal BioScience, School of Animal Life Convergence, Hankyong National University, Ansung, Republic of Korea
| | - Kyung Seob Lim
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
| | - Bong-Seok Song
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
| | - Sun-Uk Kim
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
- Department of Functional Genomics, University of Science and Technology, Daejeon, Republic of Korea
| | - Seong-Keun Cho
- Department of Animal Science, Life and Industry Convergence Research Institute (RICRI), College of Natural Resources & Life Science, Pusan National University, Miryang, Republic of Korea
| | - Bo-Woong Sim
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
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Cho JR, Yu EH, Lee HJ, Kim IH, Jeong JH, Lee DB, Cho SK, Joo JK. Ultra-Fast Vitrification: Minimizing the Toxicity of Cryoprotective Agents and Osmotic Stress in Mouse Oocyte Cryopreservation. Int J Mol Sci 2024; 25:1884. [PMID: 38339162 PMCID: PMC10856457 DOI: 10.3390/ijms25031884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024] Open
Abstract
Globally, women have been adopting oocyte cryopreservation (OC) for fertility preservation for various reasons, such as inevitable gonadotoxic treatment for specific pathologic states and social preferences. While conventional vitrification (C-VIT) has improved the success rate of OC, challenges of possible toxicities of high-concentration cryoprotective agents and osmotic stress persist. To overcome these challenges, we evaluated the ultra-fast vitrification (UF-VIT) method, which reduces the equilibration solution stage exposure time compared to C-VIT by observing mouse oocyte intracellular organelles and embryonic development. Consequently, compared to fresh mouse oocytes, UF-VIT presented significant differences only in endoplasmic reticulum (ER) intensity and mitochondrial (MT) distribution. Meanwhile, C-VIT showed substantial differences in the survival rate, key ER and MT parameters, and embryonic development rate. UF-VIT exhibited considerably fewer negative effects on key MT parameters and resulted in a notably higher blastocyst formation rate than C-VIT. Meiotic spindle (spindle and chromosomes) morphology showed no significant changes between the groups during vitrification/warming (VW), suggesting that VW did not negatively affect the meiotic spindle of the oocytes. In conclusion, UF-VIT seems more effective in OC owing to efficient cytoplasmic water molecule extraction, osmotic stress reduction, and minimization of cell contraction and expansion amplitude, thus compensating for the drawbacks of C-VIT.
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Affiliation(s)
- Jung-Ran Cho
- Infertility Center of Pusan National University Hospital, Busan 49241, Republic of Korea; (J.-R.C.); (J.-H.J.); (D.-B.L.)
- Laboratory of Animal Reproductive Physiology & Biotechnology, Department of Animal Science, Pusan National University Graduate School, Miryang 50463, Republic of Korea
| | - Eun-Hee Yu
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Pusan National University Hospital Biomedical Research Institute, Busan 49241, Republic of Korea; (E.-H.Y.); (H.-J.L.); (I.-H.K.)
| | - Hyun-Joo Lee
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Pusan National University Hospital Biomedical Research Institute, Busan 49241, Republic of Korea; (E.-H.Y.); (H.-J.L.); (I.-H.K.)
| | - In-Hye Kim
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Pusan National University Hospital Biomedical Research Institute, Busan 49241, Republic of Korea; (E.-H.Y.); (H.-J.L.); (I.-H.K.)
| | - Ji-Hye Jeong
- Infertility Center of Pusan National University Hospital, Busan 49241, Republic of Korea; (J.-R.C.); (J.-H.J.); (D.-B.L.)
- Laboratory of Animal Reproductive Physiology & Biotechnology, Department of Animal Science, Pusan National University Graduate School, Miryang 50463, Republic of Korea
| | - Dan-Bi Lee
- Infertility Center of Pusan National University Hospital, Busan 49241, Republic of Korea; (J.-R.C.); (J.-H.J.); (D.-B.L.)
| | - Seong-Keun Cho
- Laboratory of Animal Reproductive Physiology & Biotechnology, Department of Animal Science, Pusan National University Graduate School, Miryang 50463, Republic of Korea
| | - Jong-Kil Joo
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Pusan National University Hospital Biomedical Research Institute, Busan 49241, Republic of Korea; (E.-H.Y.); (H.-J.L.); (I.-H.K.)
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Jeon SB, Jeong PS, Kim MJ, Kang HG, Song BS, Kim SU, Cho SK, Sim BW. Enhancement of porcine in vitro embryonic development through luteolin-mediated activation of the Nrf2/Keap1 signaling pathway. J Anim Sci Biotechnol 2023; 14:148. [PMID: 38037099 PMCID: PMC10691000 DOI: 10.1186/s40104-023-00947-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/06/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Oxidative stress, caused by an imbalance in the production and elimination of intracellular reactive oxygen species (ROS), has been recognized for its detrimental effects on mammalian embryonic development. Luteolin (Lut) has been documented for its protective effects against oxidative stress in various studies. However, its specific role in embryonic development remains unexplored. This study aims to investigate the influence of Lut on porcine embryonic development and to elucidate the underlying mechanism. RESULTS After undergoing parthenogenetic activation (PA) or in vitro fertilization, embryos supplemented with 0.5 µmol/L Lut displayed a significant enhancement in cleavage and blastocyst formation rates, with an increase in total cell numbers and a decrease in the apoptosis rate compared to the control. Measurements on D2 and D6 revealed that embryos with Lut supplementation had lower ROS levels and higher glutathione levels compared to the control. Moreover, Lut supplementation significantly augmented mitochondrial content and membrane potential. Intriguingly, activation of the Nrf2/Keap1 signaling pathway was observed in embryos supplemented with Lut, leading to the upregulation of antioxidant-related gene transcription levels. To further validate the relationship between the Nrf2/Keap1 signaling pathway and effects of Lut in porcine embryonic development, we cultured PA embryos in a medium supplemented with brusatol, with or without the inclusion of Lut. The positive effects of Lut on developmental competence were negated by brusatol treatment. CONCLUSIONS Our findings indicate that Lut-mediated activation of the Nrf2/Keap1 signaling pathway contributes to the enhanced production of porcine embryos with high developmental competence, and offers insight into the mechanisms regulating early embryonic development.
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Affiliation(s)
- Se-Been Jeon
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
- Department of Animal Science, College of Natural Resources & Life Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Pil-Soo Jeong
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
| | - Min Ju Kim
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
- Department of Animal Science, College of Natural Resources & Life Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Hyo-Gu Kang
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Bong-Seok Song
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
| | - Sun-Uk Kim
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea
- Department of Functional Genomics, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Seong-Keun Cho
- Department of Animal Science, Life and Industry Convergence Research Institute (RICRI), College of Natural Resources & Life Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Bo-Woong Sim
- Futuristic Animal Resource & Research Center (FARRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116, Republic of Korea.
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5
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Joo YE, Jeong PS, Lee S, Jeon SB, Gwon MA, Kim MJ, Kang HG, Song BS, Kim SU, Cho SK, Sim BW. Anethole improves the developmental competence of porcine embryos by reducing oxidative stress via the sonic hedgehog signaling pathway. J Anim Sci Biotechnol 2023; 14:32. [PMID: 36814325 PMCID: PMC9945695 DOI: 10.1186/s40104-022-00824-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 12/11/2022] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND Anethole (AN) is an organic antioxidant compound with a benzene ring and is expected to have a positive impact on early embryogenesis in mammals. However, no study has examined the effect of AN on porcine embryonic development. Therefore, we investigated the effect of AN on the development of porcine embryos and the underlying mechanism. RESULTS We cultured porcine in vitro-fertilized embryos in medium with AN (0, 0.3, 0.5, and 1 mg/mL) for 6 d. AN at 0.5 mg/mL significantly increased the blastocyst formation rate, trophectoderm cell number, and cellular survival rate compared to the control. AN-supplemented embryos exhibited significantly lower reactive oxygen species levels and higher glutathione levels than the control. Moreover, AN significantly improved the quantity of mitochondria and mitochondrial membrane potential, and increased the lipid droplet, fatty acid, and ATP levels. Interestingly, the levels of proteins and genes related to the sonic hedgehog (SHH) signaling pathway were significantly increased by AN. CONCLUSIONS These results revealed that AN improved the developmental competence of porcine preimplantation embryos by activating SHH signaling against oxidative stress and could be used for large-scale production of high-quality porcine embryos.
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Affiliation(s)
- Ye Eun Joo
- grid.249967.70000 0004 0636 3099Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea ,grid.262229.f0000 0001 0719 8572Department of Animal Science, College of Natural Resources and Life Science, Pusan National University, Miryang, South Korea
| | - Pil-Soo Jeong
- grid.249967.70000 0004 0636 3099Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Sanghoon Lee
- grid.249967.70000 0004 0636 3099Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea ,grid.254230.20000 0001 0722 6377Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Se-Been Jeon
- grid.249967.70000 0004 0636 3099Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea ,grid.262229.f0000 0001 0719 8572Department of Animal Science, College of Natural Resources and Life Science, Pusan National University, Miryang, South Korea
| | - Min-Ah Gwon
- grid.249967.70000 0004 0636 3099Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea ,grid.412077.70000 0001 0744 1296Department of Biotechnology, College of Engineering, Daegu University, Gyeongsan, South Korea
| | - Min Ju Kim
- grid.249967.70000 0004 0636 3099Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea ,grid.262229.f0000 0001 0719 8572Department of Animal Science, College of Natural Resources and Life Science, Pusan National University, Miryang, South Korea
| | - Hyo-Gu Kang
- grid.249967.70000 0004 0636 3099Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea ,grid.254230.20000 0001 0722 6377Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, South Korea
| | - Bong-Seok Song
- grid.249967.70000 0004 0636 3099Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Sun-Uk Kim
- grid.249967.70000 0004 0636 3099Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea ,grid.412786.e0000 0004 1791 8264Department of Functional Genomics, University of Science and Technology, Daejeon, South Korea
| | - Seong-Keun Cho
- Department of Animal Science, College of Natural Resources and Life Science, Life and Industry Convergence Research Institute, Pusan National University, Miryang, South Korea.
| | - Bo-Woong Sim
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea.
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Shrestha S, Parajuli S, Park J, Yang H, Cho TY, Eom JH, Cho SK, Lim J, Cho G, Jung Y. Improving Stability of Roll-to-Roll (R2R) Gravure-Printed Carbon Nanotube-Based Thin Film Transistors via R2R Plasma-Enhanced Chemical Vapor-Deposited Silicon Nitride. Nanomaterials (Basel) 2023; 13:nano13030559. [PMID: 36770520 PMCID: PMC9918980 DOI: 10.3390/nano13030559] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/16/2023] [Accepted: 01/28/2023] [Indexed: 06/01/2023]
Abstract
Single-walled carbon nanotubes (SWCNTs) have an advantage in printing thin film transistors (TFTs) due to their high carrier mobility, excellent chemical stability, mechanical flexibility, and compatibility with solution-based processing. Thus, the printed SWCNT-based TFTs (pSWCNT-TFTs) showed significant technological potential such as integrated circuits, conformable sensors, and display backplanes. However, the long-term environmental stability of the pSWCNT-TFTs hinders their commercialization. Thus, to extend the stability of the pSWCNT-TFTs, such devices should be passivated with low water and oxygen permeability. Herein, we introduced the silicon nitride (SiNx) passivation method on the pSWCNT-TFTs via a combination of roll-to-roll (R2R) gravure and the roll-to-roll plasma-enhanced vapor deposition (R2R-PECVD) process at low temperature (45 °C). We found that SiNx-passivated pSWCNT-TFTs showed ± 0.50 V of threshold voltage change at room temperature for 3 days and ±1.2 V of threshold voltage change for 3 h through a Temperature Humidity Test (85/85 test: Humidity 85%/Temperature 85 °C) for both p-type and n-type pSWCNT-TFTs. In addition, we found that the SiNx-passivated p-type and n-type pSWCNT-TFT-based CMOS-like ring oscillator, or 1-bit code generator, operated well after the 85/85 test for 24 h.
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Affiliation(s)
- Sagar Shrestha
- Department of Biophysics, Institute of Quantum Biophysics, Research Engineering Center for R2R Printed Flexible Computer and Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon-si 16419, Republic of Korea
| | - Sajjan Parajuli
- Department of Biophysics, Institute of Quantum Biophysics, Research Engineering Center for R2R Printed Flexible Computer and Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon-si 16419, Republic of Korea
| | - Jinhwa Park
- Department of Biophysics, Institute of Quantum Biophysics, Research Engineering Center for R2R Printed Flexible Computer and Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon-si 16419, Republic of Korea
| | - Hao Yang
- Department of Biophysics, Institute of Quantum Biophysics, Research Engineering Center for R2R Printed Flexible Computer and Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon-si 16419, Republic of Korea
| | - Tae-Yeon Cho
- Thin Film Materials Research Center & Chemical Materials Solution Center, Korea Research Institute of Chemical Technology (KRICT), Daejon 34114, Republic of Korea
| | - Ji-Ho Eom
- Thin Film Materials Research Center & Chemical Materials Solution Center, Korea Research Institute of Chemical Technology (KRICT), Daejon 34114, Republic of Korea
| | - Seong-Keun Cho
- Thin Film Materials Research Center & Chemical Materials Solution Center, Korea Research Institute of Chemical Technology (KRICT), Daejon 34114, Republic of Korea
| | - Jongsun Lim
- Thin Film Materials Research Center & Chemical Materials Solution Center, Korea Research Institute of Chemical Technology (KRICT), Daejon 34114, Republic of Korea
| | - Gyoujin Cho
- Department of Biophysics, Institute of Quantum Biophysics, Research Engineering Center for R2R Printed Flexible Computer and Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon-si 16419, Republic of Korea
| | - Younsu Jung
- Department of Biophysics, Institute of Quantum Biophysics, Research Engineering Center for R2R Printed Flexible Computer and Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon-si 16419, Republic of Korea
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7
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Park SH, Jeong PS, Joo YE, Kang HG, Kim MJ, Lee S, Song BS, Kim SU, Cho SK, Sim BW. Luteolin Orchestrates Porcine Oocyte Meiotic Progression by Maintaining Organelle Dynamics Under Oxidative Stress. Front Cell Dev Biol 2021; 9:689826. [PMID: 34211977 PMCID: PMC8239245 DOI: 10.3389/fcell.2021.689826] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/19/2021] [Indexed: 12/24/2022] Open
Abstract
Increasing evidence has demonstrated that oxidative stress impairs oocyte maturation, but the underlying mechanisms remain largely unknown. Here, for the first time, we examined the antioxidant role of luteolin in meiotic progression and the underlying mechanisms. Supplementation of 5 μM luteolin increased the rates of first polar body extrusion and blastocyst formation after parthenogenetic activation, and the expression levels of oocyte competence (BMP15 and GDF9)-, mitogen-activated protein kinase (MOS)-, and maturation promoting factor (CDK1 and Cyclin B)-related genes were also improved. Luteolin supplementation decreased intracellular reactive oxygen species levels and increased the expression levels of oxidative stress-related genes (SOD1, SOD2, and CAT). Interestingly, luteolin alleviated defects in cell organelles, including actin filaments, the spindle, mitochondria, the endoplasmic reticulum, and cortical granules, caused by H2O2 exposure. Moreover, luteolin significantly improved the developmental competence of in vitro-fertilized embryos in terms of the cleavage rate, blastocyst formation rate, cell number, cellular survival rate, and gene expression and markedly restored the competencies decreased by H2O2 treatment. These findings revealed that luteolin supplementation during in vitro maturation improves porcine meiotic progression and subsequent embryonic development by protecting various organelle dynamics against oxidative stress, potentially increasing our understanding of the underlying mechanisms governing the relationship between oxidative stress and the meiotic events required for successful oocyte maturation.
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Affiliation(s)
- Soo-Hyun Park
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea.,Department of Animal Science, College of Natural Resources and Life Science, Pusan National University, Miryang, South Korea
| | - Pil-Soo Jeong
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Ye Eun Joo
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea.,Department of Animal Science, College of Natural Resources and Life Science, Pusan National University, Miryang, South Korea
| | - Hyo-Gu Kang
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea.,Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, South Korea
| | - Min Ju Kim
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea.,Department of Animal Science, College of Natural Resources and Life Science, Pusan National University, Miryang, South Korea
| | - Sanghoon Lee
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Bong-Seok Song
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Sun-Uk Kim
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea.,Department of Functional Genomics, University of Science and Technology, Daejeon, South Korea
| | - Seong-Keun Cho
- Department of Animal Science, College of Natural Resources and Life Science, Life and Industry Convergence Research Institute, Pusan National University, Miryang, South Korea
| | - Bo-Woong Sim
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
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8
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Park MR, Hwang IS, Kwak TU, Lim JH, Hwang S, Cho SK. Low expression of mitofusin 1 is associated with mitochondrial dysfunction and apoptosis in porcine somatic cell nuclear transfer embryos. Anim Sci J 2020; 91:e13430. [PMID: 32677174 DOI: 10.1111/asj.13430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 04/01/2020] [Accepted: 06/08/2020] [Indexed: 10/23/2022]
Abstract
Mitochondria are necessary for the transition from oocyte to embryo and for early embryonic development. Mitofusin 1 is the main mediator of mitochondrial fusion and homeostasis. We investigated Mitofusin 1 expression levels in porcine somatic cell nuclear transfer (SCNT) embryos. The rate of blastocyst formation in SCNT embryos was reduced significantly compared with that of parthenogenetic activation embryos. SCNT embryos showed significantly decreased Mitofusin 1 expression and mitochondrial membrane potential, while exhibiting increased reactive oxygen species and apoptosis. Mitochondrial functional changes were observed in the SCNT embryos and may be correlated with low levels of Mitofusin 1 to negatively affect development.
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Affiliation(s)
- Mi-Ryung Park
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun, Republic of Korea
| | - In-Sul Hwang
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun, Republic of Korea
| | - Tae-Uk Kwak
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun, Republic of Korea
| | - Ji-Hyun Lim
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun, Republic of Korea
| | - Seongsoo Hwang
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun, Republic of Korea
| | - Seong-Keun Cho
- Department of Animal Science, Life and Industry Convergence Research Institute (RICRI), College of Natural Science, Pusan University, Miryang, Gyeongnam, Republic of Korea
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9
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Lee SY, Han JH, Lee EK, Kim YK, Hwang SA, Lee SH, Kim M, Cho GY, Hwang JH, Kim SJ, Yoo JG, Cho SK, Lee KJ, Cho WK. Structural and functional characterization of recombinant human growth hormone isolated from transgenic pig milk. PLoS One 2020; 15:e0236788. [PMID: 32735629 PMCID: PMC7394428 DOI: 10.1371/journal.pone.0236788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 07/14/2020] [Indexed: 12/04/2022] Open
Abstract
This study aimed to establish and reproduce transgenic pigs expressing human growth hormone (hGH) in their milk. We also aimed to purify hGH from the milk, to characterize the purified protein, and to assess the potential of our model for mass production of therapeutic proteins using transgenic techniques. Using ~15.5 L transgenic pig milk, we obtained proteins with ≥ 99% purity after three pre-treatments and five column chromatography steps. To confirm the biosimilarity of our milk-derived purified recombinant hGH (CGH942) with commercially available somatropin (Genotropin), we performed spectroscopy, structural, and biological analyses. We observed no difference between the purified protein and Genotropin samples. Furthermore, rat models were used to assess growth promotion potential. Our results indicate that CGH942 promotes growth, by increasing bone development and body weight. Toxicity assessments revealed no abnormal findings after 4 weeks of continuous administration and 2 weeks of recovery. The no-observed-adverse-effect level for both males and females was determined to be 0.6 mg/kg/day. Thus, no toxicological differences were observed between commercially available somatropin and CGH942 obtained from transgenic pig milk. In conclusion, we describe a transgenic technique using pigs, providing a new platform to produce human therapeutic proteins.
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Affiliation(s)
- So-Young Lee
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
- * E-mail:
| | - Joo-Hee Han
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
- Department of Animal Science, College of Natural Resources and Life Science, Pusan National University, Miryang-si, Gyeongsangnam-do, Korea
| | - Eun-Kyeong Lee
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Young Kyu Kim
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Seo-Ah Hwang
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Sung-Hyun Lee
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Maria Kim
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Gye Yoon Cho
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Jae-Ha Hwang
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Su-Jin Kim
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Jae-Gyu Yoo
- Animal Diseases and Biosecurity Team, National Institute of Animal Science, Rural Development Administration, Wanju-gun, Jeollabuk-do, Korea
| | - Seong-Keun Cho
- Department of Animal Science, College of Natural Resources and Life Science, Pusan National University, Miryang-si, Gyeongsangnam-do, Korea
| | - Kyung-Ju Lee
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Weon-Ki Cho
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
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10
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Ogunsanya ME, Cho SK, Hudson A, Chong BF. Validation and reliability of a disease-specific quality-of-life measure in patients with cutaneous lupus erythematosus. Br J Dermatol 2019; 180:1430-1437. [PMID: 30637718 DOI: 10.1111/bjd.17636] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Cutaneous lupus erythematosus (CLE) is a potentially disfiguring, chronic autoimmune disease with variable skin manifestations, negatively affecting patients' quality of life (QoL). Patient-reported outcome (PRO) measures assessing QoL in patients with CLE have been generic or developed without input from patients. OBJECTIVES To demonstrate the reliability and validity of a disease-specific QoL measure for CLE - the cutaneous lupus erythematosus quality of life (CLEQoL). METHODS One hundred and one patients with CLE were recruited, and each patient was asked to complete the CLEQoL. Internal consistency was used as a measure of reliability. Validity was measured in two ways - structural validity via exploratory factor analysis and convergent validity via Spearman correlations between CLEQoL and the Short Form 36 (SF-36), visual analogue scales and clinical variables. Patient demographic and disease characteristics were collected. RESULTS The mean ± SD age of patients with CLE was 48 ± 13 years, with discoid lupus (n = 72; 71.3%) being the most predominant CLE subtype. Patients were mostly female (n = 88; 87·1%) and African American/Black (n = 59; 58·4%). Internal consistency ranged from 0·67 to 0·97. Five domains (functioning, emotions, symptoms, body image/cosmetic effects and photosensitivity) were extracted with a total explained variance of 71·1%. CLEQoL-related domains correlated with SF-36 domains (r range -0·39 to -0·65). CONCLUSIONS The CLEQoL was found to be a valid and reliable PRO measure for assessing QoL in patients with CLE. Demonstrating that the CLEQoL has strong psychometric properties is an important step towards the development of a disease-specific PRO measure that future clinical trials can use.
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Affiliation(s)
- M E Ogunsanya
- College of Pharmacy, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73117, U.S.A
| | - S K Cho
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, U.S.A
| | - A Hudson
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, U.S.A
| | - B F Chong
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, U.S.A
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11
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Lee HG, Khummuang S, Youn HH, Park JW, Choi JY, Shin TS, Cho SK, Kim BW, Seo J, Kim M, Park TS, Cho BW. The effect of heat stress on frame switch splicing of X-box binding protein 1 gene in horse. Asian-Australas J Anim Sci 2019; 32:1095-1103. [PMID: 30744354 PMCID: PMC6599951 DOI: 10.5713/ajas.18.0757] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 12/15/2018] [Indexed: 11/27/2022]
Abstract
Objective Among stress responses, the unfolded protein response (UPR) is a well-known mechanism related to endoplasmic reticulum (ER) stress. ER stress is induced by a variety of external and environmental factors such as starvation, ischemia, hypoxia, oxidative stress, and heat stress. Inositol requiring enzyme 1α (IRE1α)-X-box protein 1 (XBP1) is the most conserved pathway involved in the UPR and is the main component that mediates IRE1α signalling to downstream ER-associated degradation (ERAD)- or UPR-related genes. XBP1 is a transcription factor synthesised via a novel mechanism called ‘frame switch splicing’, and this process has not yet been studied in the horse XBP1 gene. Therefore, the aim of this study was to confirm the frame switch splicing of horse XBP1 and characterise its dynamics using Thoroughbred muscle cells exposed to heat stress. Methods Primary horse muscle cells were used to investigate heat stress-induced frame switch splicing of horse XBP1. Frame switch splicing was confirmed by sequencing analysis. XBP1 amino acid sequences and promoter sequences of various species were aligned to confirm the sequence homology and to find conserved cis-acting elements, respectively. The expression of the potential XBP1 downstream genes were analysed by quantitative real-time polymerase chain reaction. Results We confirmed that splicing of horse XBP1 mRNA was affected by the duration of thermal stress. Twenty-six nucleotides in the mRNA of XBP1 were deleted after heat stress. The protein sequence and the cis-regulatory elements on the promoter of horse XBP1 are highly conserved among the mammals. Induction of putative downstream genes of horse XBP1 was dependent on the duration of heat stress. We confirmed that both the mechanisms of XBP1 frame switch splicing and various binding elements found in downstream gene promoters are highly evolutionarily conserved. Conclusion The frame switch splicing of horse XBP1 and its dynamics were highly conserved among species. These results facilitate studies of ER-stress in horse.
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Affiliation(s)
- Hyo Gun Lee
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
| | - Saichit Khummuang
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
| | - Hyun-Hee Youn
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
| | - Jeong-Woong Park
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
| | - Jae-Young Choi
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
| | - Teak-Soon Shin
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
| | - Seong-Keun Cho
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
| | - Byeong-Woo Kim
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
| | - Jakyeom Seo
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
| | - Myunghoo Kim
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
| | - Tae Sub Park
- Graduate School of International Agricultural Technology and Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Byung-Wook Cho
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 50463, Korea
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12
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Reza AMMT, Cho SK, Choi YJ, Hong K, Kim JH. Corrigendum: Microarray profiling of miRNA and mRNA expression in Rag2 knockout and wild-type mouse spleens. Sci Data 2018; 5:180152. [PMID: 30063228 PMCID: PMC6067045 DOI: 10.1038/sdata.2018.152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
This corrects the article DOI: 10.1038/sdata.2017.199.
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Eum SH, Park HR, Seo J, Cho SK, Hur SJ, Kim BW. Multiple Regression Analysis to Estimate the Unit Price of Hanwoo ( Bos taurus coreanae) Beef. Korean J Food Sci Anim Resour 2017; 37:663-669. [PMID: 29147089 PMCID: PMC5686324 DOI: 10.5851/kosfa.2017.37.5.663] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 08/24/2017] [Accepted: 09/02/2017] [Indexed: 11/26/2022] Open
Abstract
This study were estimated the contribution of carcass traits to unit price, to analyze the marbling score as a categorical variable rather than a numerical variable, and to develop an optimal model that also includes the holiday effect and the raising period. The data for this study were acquired from the Quality Evaluation of the Korea Institute for Animal Products, and consisted of the trading records of 1,613,699 heads at 12 wholesale markets from 2010 to 2014. The unit price of a cow was estimated from the following parameters: −52.50 Won/mm, 8.93 Won/cm2, 7.20 Won/kg, and −1.04 Won/day for backfat thickness, eye muscle area, carcass weight, and raising period, respectively. Parameters for the dummy variables of marbling scores varied from 0 to 8328.74 Won/kg, which means that each marbling score grade had a different price value. The unit price of a steer was estimated from the following parameters: −92.12 Won/mm, 20.22 Won/cm2, 1.30 Won/kg, and −1.72 Won/day for backfat thickness, eye muscle area, carcass weights, and raising period, respectively. Parameters for dummy variables of marbling scores varied from 0 to 7338.80 Won/kg, which means that the grades of each marbling score had different price values. The unit price of sales during traditional holidays was significantly higher (827.71 Won/kg for cows, and 645.15 Won/kg for steers) than during non-holidays.We conclude that the use of categorical values for marbling scores would be needed to evaluate the price of Hanwoo beef using multiple regression analysis based on carcass traits and environmental factors.
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Affiliation(s)
- Seung-Hoon Eum
- Department of Animal Science, College of Natural Resources and Life Science · Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Korea
| | - Hu-Rak Park
- Department of Animal Science, College of Natural Resources and Life Science · Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Korea
| | - Jakyeom Seo
- Department of Animal Science, College of Natural Resources and Life Science · Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Korea
| | - Seong-Keun Cho
- Department of Animal Science, College of Natural Resources and Life Science · Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Korea
| | - Sun-Jin Hur
- Department of Animal Science and Technology, Chung-Ang University, Anseong 17546, Korea
| | - Byeong-Woo Kim
- Department of Animal Science, College of Natural Resources and Life Science · Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Korea
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14
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Choi YJ, Kim E, Reza AMMT, Hong K, Song H, Park C, Cho SK, Lee K, Prather RS, Kim JH. Recombination activating gene-2 null severe combined immunodeficient pigs and mice engraft human induced pluripotent stem cells differently. Oncotarget 2017; 8:69398-69407. [PMID: 29050212 PMCID: PMC5642487 DOI: 10.18632/oncotarget.20626] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 08/23/2017] [Indexed: 01/10/2023] Open
Abstract
This study comparatively investigated the transcriptional, physiological, and phenotypic differences of the immune disorder between severe combined immunodeficient (SCID) mouse and pig models. We discovered that the recombination activating gene-2 (Rag-2) SCID mice, but not RAG-2 SCID pigs, showed intense, infrequent, and mild cluster of CD3+-, CD4+-, and CD8+ signals respectively, suggesting that distinct species-specific effects exist. Furthermore, the expression of six relevant genes (NFATC1, CD79B, CD2, BLNK, FOXO1, and CD40) was more downregulated than that in the Rag-2 SCID mice, which provides a partial rationale for the death of T/B cells in the lymphoid organs of RAG-2 SCID pigs but not in Rag-2 SCID mice. Further, NK cell maturation-related gene expression was significantly lower in RAG-2 SCID pigs than in Rag-2 SCID mice. Consistently, the RAG-2 SCID pigs, but not Rag-2 SCID mice, developed human induced pluripotent stem cell-derived teratomas that were the same as those of perforin/Rag-2 SCID mice. Therefore, these unexpected findings indicate the superiority of RAG-2 SCID pigs over Rag-2 SCID mice as a suitable model for investigating human diseases.
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Affiliation(s)
- Yun-Jung Choi
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - EunSu Kim
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Abu Musa Md Talimur Reza
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Kwonho Hong
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Hyuk Song
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Chankyu Park
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Seong-Keun Cho
- Department of Animal Science, Pusan National University, Miryang, Gyeongnam, Republic of Korea
| | - Kiho Lee
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Randall S. Prather
- Division of Animal Science, University of Missouri-Columbia, Columbia, MO, USA
| | - Jin-Hoi Kim
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
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Hong SH, Lee JE, An SM, Shin YY, Hwang DY, Yang SY, Cho SK, An BS. Effect of Vitamin D3 on Biosynthesis of Estrogen in Porcine Granulosa Cells via Modulation of Steroidogenic Enzymes. Toxicol Res 2017; 33:49-54. [PMID: 28133513 PMCID: PMC5266376 DOI: 10.5487/tr.2017.33.1.049] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/12/2016] [Accepted: 12/13/2016] [Indexed: 12/02/2022] Open
Abstract
Vitamin D3 is a fat-soluble secosteroid responsible for enhancing intestinal absorption of calcium, iron, and other materials. Vitamin D3 deficiency, therefore, can cause health problems such as metabolic diseases, and bone disorder. Female sex hormones including estrogen and progesterone are biosynthesized mainly in the granulosa cells of ovary. In this study, we isolated granulosa cells from porcine ovary and cultured for the experiments. In order to examine the effect of vitamin D3 on the ovarian granulosa cells, the mRNA and protein levels of genes were analyzed by real-time PCR and Western blot assay. The production of estrogen from the granulosa cells was also measured by the ELISA assay. Genes associated with follicle growth were not significantly altered by vitamin D3. However, it increases expression of genes involved in the estrogen-biosynthesis. Further, estrogen concentrations in porcine granulosa cell-cultured media increased in response to vitamin D3. These results showed that vitamin D3 is a powerful regulator of sex steroid hormone production in porcine granulosa cells, suggesting that vitamin D deficiency may result in inappropriate sexual development of industrial animals and eventually economic loss.
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Affiliation(s)
- So-Hye Hong
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang,
Korea
| | - Jae-Eon Lee
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang,
Korea
| | - Sung-Min An
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang,
Korea
| | - Ye Young Shin
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang,
Korea
| | - Dae Youn Hwang
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang,
Korea
| | - Seung Yun Yang
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang,
Korea
| | - Seong-Keun Cho
- Department of Animal Science, College of Natural Resources & Life Science, Pusan National University, Miryang,
Korea
| | - Beum-Soo An
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang,
Korea
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16
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Yoo JG, Kim BW, Park MR, Kwon DN, Choi YJ, Shin TS, Cho BW, Seo J, Kim JH, Cho SK. Influences of somatic donor cell sex on in vitro and in vivo embryo development following somatic cell nuclear transfer in pigs. Asian-Australas J Anim Sci 2016; 30:585-592. [PMID: 27764913 PMCID: PMC5394846 DOI: 10.5713/ajas.16.0591] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 09/12/2016] [Accepted: 10/18/2016] [Indexed: 11/27/2022]
Abstract
Objective The present study investigates pre- and post-implantation developmental competence of nuclear-transferred porcine embryos derived from male and female fetal fibroblasts. Methods Male and female fetal fibroblasts were transferred to in vitro-matured enucleated oocytes and in vitro and in vivo developmental competence of reconstructed embryos was investigated. And, a total of 6,789 female fibroblast nuclear-transferred embryos were surgically transferred into 41 surrogate gilts and 4,746 male fibroblast nuclear-transferred embryos were surgically transferred into 25 surrogate gilts. Results The competence to develop into blastocysts was not significantly different between the sexes. The mean cell number of female and male cloned blastocysts obtained by in vivo culture (143.8±10.5 to 159.2±14.8) was higher than that of in vitro culture of somatic cell nuclear transfer (SCNT) groups (31.4±8.3 to 33.4±11.1). After embryo transfer, 5 pregnant gilts from each treatment delivered 15 female and 22 male piglets. The average birth weight of the cloned piglets, gestation length, and the postnatal survival rates were not significantly different (p<0.05) between sexes. Conclusion The present study found that the sex difference of the nuclear donor does not affect the developmental rate of porcine SCNT embryos. Furthermore, postnatal survivability of the cloned piglets was not affected by the sex of the donor cell.
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Affiliation(s)
- Jae-Gyu Yoo
- Animal Diseases and Biosecurity Team, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Byeong-Woo Kim
- Department of Animal Science, Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Korea
| | - Mi-Rung Park
- Animal Diseases and Biosecurity Team, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Deug-Nam Kwon
- Department of Animal Biotechnology, KonKuk University, Seoul 143-701, Korea
| | - Yun-Jung Choi
- Department of Animal Biotechnology, KonKuk University, Seoul 143-701, Korea
| | - Teak-Soon Shin
- Department of Animal Science, Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Korea
| | - Byung-Wook Cho
- Department of Animal Science, Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Korea
| | - Jakyeom Seo
- Department of Animal Science, Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Korea
| | - Jin-Hoi Kim
- Department of Animal Biotechnology, KonKuk University, Seoul 143-701, Korea
| | - Seong-Keun Cho
- Department of Animal Science, Life and Industry Convergence Research Institute, Pusan National University, Miryang 627-706, Korea
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17
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Kim SS, Kang TW, Song KD, Cho SK, Lee MW, Rhim H, Sinn DH, Jung SH. Radiofrequency ablation and transarterial chemoembolisation as first-line treatment for recurrent hepatocellular carcinoma or isolated intrahepatic recurrent hepatocellular carcinoma in transplanted livers. Clin Radiol 2016; 72:141-149. [PMID: 27742104 DOI: 10.1016/j.crad.2016.09.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/09/2016] [Accepted: 09/08/2016] [Indexed: 12/30/2022]
Abstract
AIM To evaluate the efficacy of radiofrequency ablation (RFA) and transarterial chemoembolisation (TACE) as a first-line treatment for isolated intrahepatic recurrent hepatocellular carcinoma (IIR-HCC) after liver transplantation (LT). MATERIALS AND METHODS This retrospective study was approved by the institutional review board. Between January 2005 and January 2015, 588 consecutive patients underwent LT for the treatment of HCC. Among them, 27 patients with IIR-HCCs after LT who were treated with RFA (n=6) or TACE (n=21) as a first-line treatment were retrospectively included in this study. Disease-free and overall survival rates were estimated using the Kaplan-Meier method. Risk factors affecting these outcomes were assessed with Cox regression models. RESULTS Except for the total number of recurrent tumours and time-to-tumour recurrence after LT, baseline characteristics were not significantly different between the groups. The 2-year disease-free survival rates for RFA and TACE (20% versus 14%, respectively; p=0.180) and 4-year overall survival rates (33% versus 25%, respectively; p=0.065) were not significantly different between groups. In addition, the types of treatment were not associated with disease-free or overall survival in multivariate analyses. CONCLUSION TACE may be an effective treatment comparable to RFA in patients with IIR-HCC after LT when RFA is not feasible.
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Affiliation(s)
- S S Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - T W Kang
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - K D Song
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S K Cho
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - M W Lee
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H Rhim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - D H Sinn
- Division of Hepatology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S-H Jung
- Biostatics and Clinical Epidemiology Center, Samsung Medical Center, Seoul, Republic of Korea; Department of Health Sciences and Technology, SAIHST, Sungkyunkwan Univeristy, Seoul, Republic of Korea
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18
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Choi YJ, Lee K, Park WJ, Kwon DN, Park C, Do JT, Song H, Cho SK, Park KW, Brown AN, Samuel MS, Murphy CN, Prather RS, Kim JH. Partial loss of interleukin 2 receptor gamma function in pigs provides mechanistic insights for the study of human immunodeficiency syndrome. Oncotarget 2016; 7:50914-50926. [PMID: 27463006 PMCID: PMC5239447 DOI: 10.18632/oncotarget.10812] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 07/13/2016] [Indexed: 12/29/2022] Open
Abstract
In this study, we described the phenotype of monoallelic interleukin 2 receptor gamma knockout (mIL2RG+/Δ69-368 KO) pigs. Approximately 80% of mIL2RG+/Δ69-368 KO pigs (8/10) were athymic, whereas 20% (2/10) presented a rudimentary thymus. The body weight of IL2RG+/Δ69-368KO pigs developed normally. Immunological analysis showed that mIL2RG+/Δ69-368 KO pigs possessed CD25+CD44- or CD25-CD44+ cells, whereas single (CD4 or CD8) or double (CD4/8) positive cells were lacking in mIL2RG+/Δ69-368 KO pigs. CD3+ cells in the thymus of mIL2RG+/Δ69-368 KO pigs contained mainly CD44+ cells and/or CD25+ cells, which included FOXP3+ cells. These observations demonstrated that T cells from mIL2RG+/Δ69-368 KO pigs were able to develop to the DN3 stage, but failed to transition toward the DN4 stage. Whole-transcriptome analysis of thymus and spleen, and subsequent pathway analysis revealed that a subset of genes differentially expressed following the loss of IL2RG might be responsible for both impaired T-cell receptor and cytokine-mediated signalling. However, comparative analysis of two mIL2RG+/Δ69-368 KO pigs revealed little variability in the down- and up-regulated gene sets. In conclusion, mIL2RG+/Δ69-368 KO pigs presented a T-B+NK- SCID phenotype, suggesting that pigs can be used as a valuable and suitable biomedical model for human SCID research.
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Affiliation(s)
- Yun-Jung Choi
- Animal Biotechnology to Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Kiho Lee
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, USA
- Division of Animal Science, National Swine Resource and Research Center, University of Missouri, Columbia, MO, USA
| | - Woo-Jin Park
- Animal Biotechnology to Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Deug-Nam Kwon
- Animal Biotechnology to Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Chankyu Park
- Animal Biotechnology to Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Jeong Tae Do
- Animal Biotechnology to Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Hyuk Song
- Animal Biotechnology to Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Seong-Keun Cho
- Department of Animal Science, Pusan National University, Miryang, Gyeongnam, Republic of Korea
| | - Kwang-Wook Park
- Department of Animal Science and Technology, Sunchon National University, Suncheon, Jeonnam, Republic of Korea
| | - Alana N. Brown
- Division of Animal Science, National Swine Resource and Research Center, University of Missouri, Columbia, MO, USA
- National Swine Resource and Research Center, University of Missouri, Columbia, MO, USA
| | - Melissa S. Samuel
- Division of Animal Science, National Swine Resource and Research Center, University of Missouri, Columbia, MO, USA
- National Swine Resource and Research Center, University of Missouri, Columbia, MO, USA
| | - Clifton N. Murphy
- Division of Animal Science, National Swine Resource and Research Center, University of Missouri, Columbia, MO, USA
- National Swine Resource and Research Center, University of Missouri, Columbia, MO, USA
| | - Randall S. Prather
- Division of Animal Science, National Swine Resource and Research Center, University of Missouri, Columbia, MO, USA
- National Swine Resource and Research Center, University of Missouri, Columbia, MO, USA
| | - Jin-Hoi Kim
- Animal Biotechnology to Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
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Hong SH, Lee JE, Kim HS, Jung YJ, Hwang D, Lee JH, Yang SY, Kim SC, Cho SK, An BS. Effect of vitamin D3 on production of progesterone in porcine granulosa cells by regulation of steroidogenic enzymes. J Biomed Res 2016; 30:203-8. [PMID: 27533930 PMCID: PMC4885168 DOI: 10.7555/jbr.30.2016k0012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 03/07/2016] [Accepted: 03/08/2016] [Indexed: 12/25/2022] Open
Abstract
1,25-dihydroxyvitamin D3 (VD3), an active form of Vitamin D, is photosynthesized in the skin of vertebrates in response to solar ultraviolet B radiation (UV-B). VD3 deficiency can cause health problems such as immune disease, metabolic disease, and bone disorders. It has also been demonstrated that VD3 is involved in reproductive functions. Female sex hormones such as estrogen and progesterone are biosynthesized mainly in ovarian granulosa cells as the ovarian follicle develops. The functions of sex hormones include regulation of the estrus cycle and puberty as well as maintenance of pregnancy in females. In this study, we isolated granulosa cells from porcine ovaries and cultured them for experiments. To examine the effects of VD3 on ovarian granulosa cells, the mRNA and protein levels of genes were analyzed by Real-time PCR and Western blotting assay. Production of progesterone from granulosa cells was also measured by ELISA assay. As a result, transcriptional and translational regulation of progesterone biosynthesis-related genes in granulosa cells was significantly altered by VD3. Furthermore, progesterone concentrations in porcine granulosa cell-cultured media decreased in response to VD3. These results show that VD3 was a strong regulator of sex steroid hormone production in porcine granulosa cells, suggesting that vitamin D deficiency may result in inappropriate sexual development of industrial animals and eventually economic loss.
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Affiliation(s)
- So-Hye Hong
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang 50463, Korea
| | - Jae-Eon Lee
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang 50463, Korea
| | - Hong Sung Kim
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang 50463, Korea
| | - Young-Jin Jung
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang 50463, Korea
| | - DaeYoun Hwang
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang 50463, Korea
| | - Jae Ho Lee
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang 50463, Korea
| | - Seung Yun Yang
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang 50463, Korea
| | - Seung-Chul Kim
- Department of Obstetrics and Gynecology, Biomedical Research Institute, Pusan National University School of Medicine, Busan 46269, Korea
| | - Seong-Keun Cho
- Department of Animal Science, College of Natural Resources & Life Science, Pusan National University, Miryang 50463, Korea
| | - Beum-Soo An
- Department of Biomaterials Science, College of Natural Resources & Life Science, Pusan National University, Miryang 50463, Korea.
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Cho SK, Dang C, Wang X, Ragan R, Kwon YJ. Mixing-sequence-dependent nucleic acid complexation and gene transfer efficiency by polyethylenimine. Biomater Sci 2015. [PMID: 26221945 DOI: 10.1039/c5bm00041f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Polyplexes, complexed nucleic acids by cationic polymers, are the most common forms of nonviral gene delivery vectors. In contrast to a great deal of efforts in synthesizing novel cationic polymers and exploring their extracellular and intracellular delivery pathways, polyplex preparation methods of mixing nucleic acids and cationic polymers are often overlooked. In this study, the mixing sequence, that is adding nucleic acids to polymers or vice versa, was found to greatly affect complexation of both plasmid DNA and siRNA, polyplexes' size, and polyplexes' surface charge, which all collaboratively affected the transfection efficiency and cytotoxicity. Adding polyethylenimine (PEI), the most conventionally used standard in nonviral gene delivery, to plasmid DNA and siRNA resulted in larger polyplexes, higher gene expression and silencing, but higher cytotoxicity than polyplexes prepared in the reverse order. Based on the experimental results, the authors developed a model that gradual addition of cationic polymers (e.g., PEI) to nucleic acids (e.g., plasmid DNA and siRNA) incorporates more copies of nucleic acids in larger polyplexes in a smaller number, results in higher gene expression and silencing levels in transfected cells, and generates higher cytotoxicity by leaving more free polymers upon complete mixing than the other mixing sequence. The proposed model can be explored using a broad range of cationic polymers and nucleic acids, and provide insightful information about how to prepare polyplexed nonviral vectors for efficient and safe gene delivery.
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Affiliation(s)
- S K Cho
- Department of Chemistry, Dong-A University, Busan, South Korea
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Abstract
C5 nerve root palsy is a rare and potentially debilitating complication of cervical spine surgery. Currently, however, there are no guidelines to help surgeons to prevent or treat this complication. We carried out a systematic review of the literature to identify the causes of this complication and options for its prevention and treatment. Searches of PubMed, Embase and Medline yielded 60 articles for inclusion, most of which addressed C5 palsy as a complication of surgery. Although many possible causes were given, most authors supported posterior migration of the spinal cord with tethering of the nerve root as being the most likely. Early detection and prevention of a C5 nerve root palsy using neurophysiological monitoring and variations in surgical technique show promise by allowing surgeons to minimise or prevent the incidence of C5 palsy. Conservative treatment is the current treatment of choice; most patients make a full recovery within two years. Cite this article: Bone Joint J 2014;96-B:950–5.
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Affiliation(s)
- J Z Guzman
- Icahn School of Medicine at Mount Sinai, Leni & Peter W. May Department of Orthopaedic Surgery, 5 E. 98th Street, Box 1188, New York, New York 10029, USA
| | - E O Baird
- Icahn School of Medicine at Mount Sinai, Leni & Peter W. May Department of Orthopaedic Surgery, 5 E. 98th Street, Box 1188, New York, New York 10029, USA
| | - A C Fields
- Icahn School of Medicine at Mount Sinai, Leni & Peter W. May Department of Orthopaedic Surgery, 5 E. 98th Street, Box 1188, New York, New York 10029, USA
| | - S J McAnany
- Icahn School of Medicine at Mount Sinai, Leni & Peter W. May Department of Orthopaedic Surgery, 5 E. 98th Street, Box 1188, New York, New York 10029, USA
| | - S A Qureshi
- Icahn School of Medicine at Mount Sinai, Leni & Peter W. May Department of Orthopaedic Surgery, 5 E. 98th Street, Box 1188, New York, New York 10029, USA
| | - A C Hecht
- Icahn School of Medicine at Mount Sinai, Leni & Peter W. May Department of Orthopaedic Surgery, 5 E. 98th Street, Box 1188, New York, New York 10029, USA
| | - S K Cho
- Icahn School of Medicine at Mount Sinai, Leni & Peter W. May Department of Orthopaedic Surgery, 5 E. 98th Street, Box 1188, New York, New York 10029, USA
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Kim SY, Lee SH, Cho SK, Jeong CM, Jeon YC, Yun MJ, Huh JB. Comparison of the accuracy of digitally fabricated polyurethane model and conventional gypsum model. J Adv Prosthodont 2014; 6:1-7. [PMID: 24605199 PMCID: PMC3942521 DOI: 10.4047/jap.2014.6.1.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 11/19/2013] [Accepted: 12/30/2013] [Indexed: 11/08/2022] Open
Abstract
PURPOSE The accuracy of a gypsum model (GM), which was taken using a conventional silicone impression technique, was compared with that of a polyurethane model (PM), which was taken using an iTero™ digital impression system. MATERIALS AND METHODS The maxillary first molar artificial tooth was selected as the reference tooth. The GMs were fabricated through a silicone impression of a reference tooth, and PMs were fabricated by a digital impression (n=9, in each group). The reference tooth and experimental models were scanned using a 3 shape convince™ scan system. Each GM and PM image was superimposed on the registered reference model (RM) and 2D images were obtained. The discrepancies of the points registered on the superimposed images were measured and defined as GM-RM group and PM-RM group. Statistical analysis was performed using a Student's T-test (α=0.05). RESULTS A comparison of the absolute value of the discrepancy revealed a significant difference between the two groups only at the occlusal surface. The GM group showed a smaller mean discrepancy than the PM group. Significant differences in the GM-RM group and PM-RM group were observed in the margins (point a and f), mesial mid-axial wall (point b) and occlusal surfaces (point c and d). CONCLUSION Under the conditions examined, the digitally fabricated polyurethane model showed a tendency for a reduced size in the margin than the reference tooth. The conventional gypsum model showed a smaller discrepancy on the occlusal surface than the polyurethane model.
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Affiliation(s)
- So-Yeun Kim
- Department of Prosthodontics, Pusan National University Dental Hospital, Dental Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - So-Hyoun Lee
- Department of Prosthodontics, Pusan National University Dental Hospital, Dental Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | | | - Chang-Mo Jeong
- Department of Prosthodontics, Pusan National University Dental Hospital, Dental Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - Young-Chan Jeon
- Department of Prosthodontics, Pusan National University Dental Hospital, Dental Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - Mi-Jung Yun
- Department of Prosthodontics, Pusan National University Dental Hospital, Dental Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - Jung-Bo Huh
- Department of Prosthodontics, Pusan National University Dental Hospital, Dental Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
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Abstract
Dysphagia is a common complication of anterior surgery of the cervical spine. The incidence of post-operative dysphagia may be as high as 71% within the first two weeks after surgery, but gradually decreases during the following months. However, 12% to 14% of patients may have some persistent dysphagia one year after the procedure. It has been shown that female gender, advanced age, multilevel surgery, longer operating time and severe pre-operative neck pain may be risk factors. Although the aetiology remains unclear and is probably multifactorial, proposed causes include oesophageal retraction, prominence of the cervical plate and prevertebral swelling. Recently, pre-operative tracheal traction exercises and the use of retropharyngeal steroids have been proposed as methods of reducing post-operative dysphagia. We performed a systematic review to assess the incidence, aetiology, risk factors, methods of assessment and management of dysphagia following anterior cervical spinal surgery.
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Affiliation(s)
- S K Cho
- Ichan School of Medicine at Mount Sinai, Leni & Peter W. May Department of Orthopaedics, 5 East 98th Street, Box 1188, New York, New York 10029, USA.
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Bang JI, Yoo JG, Park MR, Shin TS, Cho BW, Lee HG, Kim BW, Kang TY, Kong IK, Kim JH, Cho SK. The effects of artificial activation timing on the development of SCNT-derived embryos and newborn piglets. Reprod Biol 2013; 13:127-32. [PMID: 23719117 DOI: 10.1016/j.repbio.2013.01.181] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 09/17/2012] [Indexed: 11/16/2022]
Abstract
This study investigated the effects of two different activation regimens on the developmental potential of somatic cell nuclear transfer (SCNT) embryos and postnatal survivability of the cloned piglets. In vitro matured oocytes were enucleated and reconstructed with porcine fetal fibroblasts. On the basis of the activation regimen used, the reconstructed porcine embryos were allocated into two groups: Group 1-simultaneous electrical pulses and activation group (SFA group); and Group 2-electrical fusion without calcium followed by electrical pulses with calcium after colcemid and cytochalasin B treatment for 5h (DA group). Embryonic development in both SFA and DA groups was determined at day 6 of culture in NSCU-23 medium. To investigate the post-implantation development after the two activation methods, embryos were cultured for 1 day and then transferred into the oviducts of estrus-synchronized recipients. DA group had significantly (p<0.05) higher cleavage rates than SFA group. However, the developmental rate to the blastocyst stage and the mean cell number of blastocysts did not differ (p>0.05) between SFA and DA groups. Moreover, the pregnancy rate of SFA group was not significantly different compared to DA group. A total of 20 cloned piglets (SFA group-8 live piglets, DA group-11 live piglets and one stillborn) were obtained in the present study. The birth weight of the cloned piglets (live births) did not differ (p>0.05) between the two groups. Furthermore, no difference was observed in the postnatal survival rates of the cloned piglets obtained using two different activation regimens. These results suggest that the timing of artificial activation and additional chemical treatments do not affect the developmental rate of porcine SCNT embryos. Remarkably, the pregnancy rate and postnatal survivability of the cloned piglets did not vary between SFA and DA groups.
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Affiliation(s)
- Jae-Il Bang
- Department of Animal Science, Division of Applied Life Science, Graduate School of Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea
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Bang JI, Lee HS, Deb GK, Ha AN, Kwon YS, Cho SK, Kim BW, Cho KW, Kong IK. Proteomic identification of abnormally expressed proteins in early-stage placenta derived from cloned cat embryos. Theriogenology 2013; 79:358-66.e1. [DOI: 10.1016/j.theriogenology.2012.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 08/15/2012] [Accepted: 10/12/2012] [Indexed: 11/26/2022]
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Lee SB, Choi YH, Cho SK, Shin TS, Cho BW, Kang HS, Kim KK, Kim SK, Lee HG. Effects of Dietary Flammulina velutipes Mycelium on Broiler Chick Performance, Pathogenic Bacterial Counts in Caecal Contents and Amount of NH3in Excreta. Journal of Animal Science and Technology 2012. [DOI: 10.5187/jast.2012.54.5.341] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Chae JI, Kim J, Lee SG, Koh MW, Jeon YJ, Kim DW, Ko SM, Seo KS, Lee HK, Choi NJ, Cho SK, Ryu J, Kang S, Lee DS, Chung HM, Koo DB. Quantitative proteomic analysis of pregnancy-related proteins from peripheral blood mononuclear cells during pregnancy in pigs. Anim Reprod Sci 2012; 134:164-76. [PMID: 22917877 DOI: 10.1016/j.anireprosci.2012.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 05/17/2012] [Accepted: 07/13/2012] [Indexed: 01/20/2023]
Abstract
Information obtained from peripheral blood could help us understand the underlying mechanisms in autoimmune diseases, cancer, pregnancy, and other conditions. In this paper, we present the protein map of porcine peripheral blood mononuclear cells (PBMC) to better understand the molecular expression changes that occur during pregnancy using proteomic analysis. We detected 94 differentially expressed proteins in pregnant vs. non-pregnant (NP) pigs, and a representative set of the proteins was subjected to LC-MS/MS analysis. Furthermore, the identified proteins were categorized according to their biological process and molecular function. By classifying the proteins according to their functions, a large number of differentially regulated proteins involved in anti-oxidant, detoxification and stress response pathways were found, including peroxiredoxin (PRX) 1, 2, and 6, glutathione-S-transferase (GST), annexin A2, and A6, and heat shock protein 27 (HSP 27) during pregnancy (pregnancy d of E40, embryonic day 40; E70, embryonic day 70; and E93, embryonic day 93) compared with non-pregnancy. In this study, a proteomic approach utilizing 2-DE and LC-MS/MS was applied to evaluate specific molecular expression changes during pregnancy compared with non-pregnancy. Together, these data offer new information about the proteome map and factors that are differentially regulated during maintenance of normal pregnancy.
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Affiliation(s)
- Jung-Il Chae
- Department of Oral Pharmacology, School of Dentistry and Institute of Dental Bioscience, BK21 Project, Chonbuk National University, Jeonju, Republic of Korea
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Hur CG, Kim EJ, Cho SK, Cho YW, Yoon SY, Tak HM, Kim CW, Choe C, Han J, Kang D. K+ efflux through two-pore domain K+ channels is required for mouse embryonic development. Reproduction 2012; 143:625-36. [DOI: 10.1530/rep-11-0225] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Numerous studies have suggested that K+ channels regulate a wide range of physiological processes in mammalian cells. However, little is known about the specific function of K+ channels in germ cells. In this study, mouse zygotes were cultured in a medium containing K+ channel blockers to identify the functional role of K+ channels in mouse embryonic development. Voltage-dependent K+ channel blockers, such as tetraethylammonium and BaCl2, had no effect on embryonic development to the blastocyst stage, whereas K2P channel blockers, such as quinine, selective serotonin reuptake inhibitors (fluoxetine, paroxetine, and citalopram), gadolinium trichloride, anandamide, ruthenium red, and zinc chloride, significantly decreased blastocyst formation (P<0.05). RT-PCR data showed that members of the K2P channel family, specifically KCNK2, KCNK10, KCNK4, KCNK3, and KCNK9, were expressed in mouse oocytes and embryos. In addition, their mRNA expression levels, except Kcnk3, were up-regulated by above ninefold in morula-stage embryos compared with 2-cell stage embryos (2-cells). Immunocytochemical data showed that KCNK2, KCNK10, KCNK4, KCNK3, and KCNK9 channel proteins were expressed in the membrane of oocytes, 2-cells, and blastocysts. Each siRNA injection targeted at Kcnk2, Kcnk10, Kcnk4, Kcnk3, and Kcnk9 significantly decreased blastocyst formation by ∼38% compared with scrambled siRNA injection (P<0.05). The blockade of K2P channels acidified the intracellular pH and depolarized the membrane potential. These results suggest that K2P channels could improve mouse embryonic development through the modulation of gating by activators.
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Choi WJ, Kim SH, Koh WU, Hwang DI, Cho SK, Park PH, Han SM, Shin JW. Effect of pre-exposure to sevoflurane on the bispectral index in women undergoing Caesarean delivery under general anaesthesia. Br J Anaesth 2012; 108:990-7. [PMID: 22434266 DOI: 10.1093/bja/aes036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Patients undergoing Caesarean delivery under inhalation anaesthesia are at a high risk of awareness, especially in the period before delivery. We assessed the effects of pre-exposure to sevoflurane on the bispectral index (BIS) in the interval before delivery. METHODS Sixty-four patients undergoing elective Caesarean delivery were randomly assigned to receive 1.0-1.1 vol% (control 1) or 1.2-1.3 vol% (control 2) end-tidal sevoflurane, or the same concentrations of end-tidal sevoflurane combined with pre-exposure to 1 vol% sevoflurane for the last 1 min of the preoxygenation period (the preSevo 1 and preSevo 2 groups, respectively). We assessed BIS values, arterial pressure, and heart rate at the time of induction; before intubation; and upon skin incision, uterine incision, and delivery. We also determined the maternal incidence of intraoperative awareness and the neonatal Apgar scores, and conducted umbilical blood gas analysis. RESULTS At skin incision, BIS values were significantly lower in the preSevo 1 group than in the control 1 group [50 (13) vs 72 (8), P<0.001] and in the preSevo 2 group than in the control 2 group [44 (11) vs 67 (10), P<0.001]. The mean BIS values in the preSevo 1 and 2 groups were maintained below 60 in the period before delivery. No other parameter differed among groups, and no patient exhibited intraoperative awareness. CONCLUSIONS Pre-exposure to low concentrations of sevoflurane reduced BIS values in the interval before delivery, suggesting that this approach may reduce the risk of maternal awareness. Clinical Research Information Service (code KCT0000069, http://cris.cdc.go.kr).
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Affiliation(s)
- W J Choi
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Yoo JG, Hur CG, Park MR, Park JY, Hwang KC, Kim JH, Kim JH, Cho SK. Electrical activation enhances pre-implantation embryo development following sperm injection into in vitro matured pig oocytes. J Vet Med Sci 2011; 74:429-34. [PMID: 22123305 DOI: 10.1292/jvms.11-0073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The objective of this study was to evaluate the effect of electrical stimulation (EST) on pronuclear formation, chromosomal constitution, and developmental capability among in vitro matured pig oocytes following intracytoplasmic sperm injection (ICSI). After ICSI, the oocytes were randomly distributed and cultured into 3 groups: the EST activated ICSI group, non-activation ICSI group, and in vitro fertilization (IVF) group. The proportion of oocytes in which 2 pronuclei were formed in ICSI groups was significantly higher in the former groups than in the IVF group (96.2 and 93.5 vs. 64.5%, respectively, P<0.05). The cleavage rate was significantly higher in EST activated ICSI group (78.6%) than in the IVF and non-activated ICSI groups (51.8 and 46.0%, respectively, P<0.05), as was the proportion of oocytes that developed to the blastocyst stage at day 7 (18.9 vs. 11.6 and 9.1%, respectively, P<0.05). Diploid blastocysts were observed in 52.4, 63.0, and 65.2% of oocytes in the IVF, activated, and non-activated ICSI groups, respectively. Eight out of 23 gilts (34.8%) were confirmed to be pregnant in activated ICSI groups, but none of these pregnancies were carried to term. These results show that oocyte activation after ICSI is effective in elevating the cleavage rate and blastocyst development, while ensuring normal chromosome composition. Further research is needed to determine the pregnancy maintenance requirements for ICSI-embryos in pigs.
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Affiliation(s)
- Jae-Gyu Yoo
- Division of Animal Science, National Institute of Animal Science, Rural Development Administration, Suwon, Gyeonggi 441-706, Republic of Korea
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Chae JI, Kim J, Lee SG, Jeon YJ, Kim DW, Soh Y, Seo KS, Lee HK, Choi NJ, Ryu J, Kang S, Cho SK, Lee DS, Chung HM, Koo ADB. Proteomic analysis of pregnancy-related proteins from pig uterus endometrium during pregnancy. Proteome Sci 2011; 9:41. [PMID: 21791079 PMCID: PMC3162492 DOI: 10.1186/1477-5956-9-41] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Accepted: 07/26/2011] [Indexed: 01/11/2023] Open
Abstract
Many important molecular events associated with implantation and development occur within the female reproductive tract, especially within the uterus endometrium, during pregnancy periods. The endometrium includes the mucosal lining of the uterus, which provides a suitable site for implantation and development of a fertilized egg and fetus. To date, the molecular cascades in the uterus endometrium during pregnancy periods in pigs have not been elucidated fully. In this study, we compared the functional regulated proteins in the endometrium during pregnancy periods with those in non-pregnant conditions and investigated changes in expression patterns during pregnancy (days 40, 70, and 93) using two-dimensional gel electrophoresis (2-DE) and western blotting. The functional regulated proteins were identified and discovered from differentially expressed proteins in the uterus endometrium during pregnancy. We discovered 820 protein spots in a proteomic analysis of uterus endometrium tissues with 2-DE gels. We identified 63 of the 98 proteins regulated differentially among non-pregnant and pregnant tissues (matched and unmatched spots). Interestingly, 10 of these 63 proteins are development-, cytoskeleton- and chaperon-related proteins such as transferrin, protein DJ-1, transgelin, galectin-1, septin 2, stathmin 1, cofilin 1, fascin 1, heat shock protein (HSP) 90β and HSP 27. The specific expression patterns of these proteins in the endometrium during pregnancy were confirmed by western blotting. Our results suggest that the expressions of these genes involved in endometrium function and endometrium development from early to late gestation are associated with the regulation of endometrium development for maintaining pregnancy.
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Affiliation(s)
- Jung-Il Chae
- Department of Oral Pharmacology, School of Dentistry and Institute of Dental Bioscience, BK21 project, Chonbuk National University, Jeonju (651-756), Korea
| | - Jumi Kim
- Graduate School of Life Science, CHA Stem Cell Institute, College of Medicine, CHA University, 605-21 Yeoksam 1 dong, Gangnam gu, Seoul 135-907, Korea
| | - Seong G Lee
- Department of Obstetrics and Gynecology, College of Medicine, Yeungnam University, Daegu 705-717, Korea
| | - Young-Joo Jeon
- Department of Oral Pharmacology, School of Dentistry and Institute of Dental Bioscience, BK21 project, Chonbuk National University, Jeonju (651-756), Korea
| | - Dong-Wook Kim
- Department of Oral Pharmacology, School of Dentistry and Institute of Dental Bioscience, BK21 project, Chonbuk National University, Jeonju (651-756), Korea
| | - Yunjo Soh
- Department of Oral Pharmacology, School of Dentistry and Institute of Dental Bioscience, BK21 project, Chonbuk National University, Jeonju (651-756), Korea
| | - Kang S Seo
- Department of Animal Science and Technology, Sunchon National University, Suncheon 540-742, Korea
| | - Hak K Lee
- Genomic Informatics Center, Hankyong National University, 67 Sukjong-dong, Ansung-city, Kyongi-do, 456-749, Korea
| | - Nag-Jin Choi
- Department of Animal Science, College of Agricultural & Life Science, Chonbuk National University, Jeonju, Korea
| | - Joohyun Ryu
- Medical Proteomics Research Center, KRIBB, Daejeon, Republic of Korea
| | - Sunghyun Kang
- Medical Proteomics Research Center, KRIBB, Daejeon, Republic of Korea
| | - Seong-Keun Cho
- Depart. of Animal Science, College of National Resources and Life Science, Pusan National University, Miryang-si, Gyeongnam 627-706, Korea
| | - Dong-Seok Lee
- College of Natural Sciences, Kyungpook National University, Daegu 702-701, Korea
| | - Hyung M Chung
- CHA Bio & Diostech Co., Ltd. 606-16 Yeoksam 1 dong, Gangnam gu, Seoul 135-907, Korea.,Graduate School of Life Science, CHA Stem Cell Institute, College of Medicine, CHA University, 605-21 Yeoksam 1 dong, Gangnam gu, Seoul 135-907, Korea
| | - And Deog-Bon Koo
- Department of Biotechnology, College of Engineering Daegu University, 15 Jillyang Gyeongsan, Gyeongbuk 712-714, Korea
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Chae JI, Cho SK, Koo DB. Identification and Expression of Pregnancy-Related Proteins from Peripheral Blood Mononuclear Cells During Pregnancy in Pigs. Biol Reprod 2011. [DOI: 10.1093/biolreprod/85.s1.397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kim SK, Kang MS, Yoon BY, Kim DY, Cho SK, Bae SC, Her MY. Histiocytic necrotizing lymphadenitis in the context of systemic lupus erythematosus (SLE): Is histiocytic necrotizing lymphadenitis in SLE associated with skin lesions? Lupus 2011; 20:809-19. [PMID: 21562017 DOI: 10.1177/0961203310397684] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Histiocytic necrotizing lymphadenitis (HNL), or Kikuchi's disease, is a benign and self-limiting lymphadenopathy that typically affects young Asian females. It presents with lymphadenopathy, usually cervical, accompanied by fever, chills and leukopenia. Although the association between systemic lupus erythematosus (SLE) and HNL is rare, the number of reports of HNL in SLE patients is increasing. We present nine cases of HNL in patients with SLE. Among the seven patients with diverse skin manifestations, three had skin manifestations that were histologically compatible with SLE. A review of previous reports in the literature showed that cutaneous involvement was commonly found in HNL in association with SLE. In the patients who had simultaneous onset of both diseases, lupus flare-ups were commonly observed. We suggest that HNL in SLE patients is associated with cutaneous manifestations. This report contributes to our understanding of the relationship between these diseases.
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Affiliation(s)
- S K Kim
- Department of Internal Medicine, Arthritis and Autoimmunity Research Center, Catholic University of Daegu School of Medicine, Daegu, South Korea
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Kim JH, Park JY, Park MR, Hwang KC, Park KK, Park C, Cho SK, Lee HC, Song H, Park SB, Kim T, Kim JH. Developmental arrest of scNT-derived fetuses by disruption of the developing endometrial gland as a result of impaired trophoblast migration and invasiveness. Dev Dyn 2011; 240:627-39. [PMID: 21305651 DOI: 10.1002/dvdy.22568] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2010] [Indexed: 11/10/2022] Open
Abstract
Somatic cell nuclear transfer (scNT)-derived pig placenta tissues of gestational day 30 displayed avascularization and hypovascularization. Most of the cytotrophoblast-like cells of the developing scNT-derived placenta villi were improperly localized or exhibited impaired migration to their targeting loci. Id-2, Met, MMP-9, and MCM-7 were barely detectable in the cytotrophoblast cells of the scNT-derived placenta villi. Active MMP-2 and MMP-9 expression was significantly down-regulated in the scNT-embryo transferred recipient uteri. scNT clones exhibited a hypermethylated pattern within the pig MMP-9 promoter region and the significance of GC box in the regulation of MMP-9 promoter activity. Marked apoptosis was observed in the developing endometrial gland of scNT-embryo transferred recipient uteri. Collectively, our data strongly indicated that early gestational death of scNT clones is caused, at least in part, by disruption of the developing endometrial gland as a result of impaired trophoblast migration and invasiveness due to the down-regulation of active MMP-9 expression.
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Cho SK, Yoon JS, Lee MG, Lee DH, Lim LA, Park K, Park MS, Chung JY. Rifampin Enhances the Glucose-Lowering Effect of Metformin and Increases OCT1 mRNA Levels in Healthy Participants. Clin Pharmacol Ther 2011; 89:416-21. [DOI: 10.1038/clpt.2010.266] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Park JY, Park MR, Hwang KC, Chung JS, Bui HT, Kim T, Cho SK, Kim JH, Hwang S, Park SB, Nguyen VT, Kim JH. Comparative Gene Expression Analysis of Somatic Cell Nuclear Transfer-Derived Cloned Pigs with Normal and Abnormal Umbilical Cords1. Biol Reprod 2011; 84:189-99. [DOI: 10.1095/biolreprod.110.085779] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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Abstract
There are three basic concepts that are important to the biomechanics of pedicle screw-based instrumentation. First, the outer diameter of the screw determines pullout strength, while the inner diameter determines fatigue strength. Secondly, when inserting a pedicle screw, the dorsal cortex of the spine should not be violated and the screws on each side should converge and be of good length. Thirdly, fixation can be augmented in cases of severe osteoporosis or revision. A trajectory parallel or caudal to the superior endplate can minimise breakage of the screw from repeated axial loading. Straight insertion of the pedicle screw in the mid-sagittal plane provides the strongest stability. Rotational stability can be improved by adding transverse connectors. The indications for their use include anterior column instability, and the correction of rotational deformity.
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Affiliation(s)
- W Cho
- Department of Orthopaedic Surgery, University of Virginia, 114 Old Fifth Circle, Charlottesville, Virginia 22903, USA.
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Park JY, Kim JH, Choi YJ, Hwang KC, Cho SK, Park HH, Paik SS, Kim T, Park C, Lee HT, Seo HG, Park SB, Hwang S, Kim JH. Comparative proteomic analysis of malformed umbilical cords from somatic cell nuclear transfer-derived piglets: implications for early postnatal death. BMC Genomics 2009; 10:511. [PMID: 19889237 PMCID: PMC2783166 DOI: 10.1186/1471-2164-10-511] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Accepted: 11/05/2009] [Indexed: 02/02/2023] Open
Abstract
Background Somatic cell nuclear transfer (scNT)-derived piglets have high rates of mortality, including stillbirth and postnatal death. Here, we examined severe malformed umbilical cords (MUC), as well as other organs, from nine scNT-derived term piglets. Results Microscopic analysis revealed complete occlusive thrombi and the absence of columnar epithelial layers in MUC (scNT-MUC) derived from scNT piglets. scNT-MUC had significantly lower expression levels of platelet endothelial cell adhesion molecule-1 (PECAM-1) and angiogenesis-related genes than umbilical cords of normal scNT piglets (scNT-N) that survived into adulthood. Endothelial cells derived from scNT-MUC migrated and formed tubules more slowly than endothelial cells from control umbilical cords or scNT-N. Proteomic analysis of scNT-MUC revealed significant down-regulation of proteins involved in the prevention of oxidative stress and the regulation of glycolysis and cell motility, while molecules involved in apoptosis were significantly up-regulated. Histomorphometric analysis revealed severe calcification in the kidneys and placenta, peliosis in the liver sinusoidal space, abnormal stromal cell proliferation in the lungs, and tubular degeneration in the kidneys in scNT piglets with MUC. Increased levels of apoptosis were also detected in organs derived from all scNT piglets with MUC. Conclusion These results suggest that MUC contribute to fetal malformations, preterm birth and low birth weight due to underlying molecular defects that result in hypoplastic umbilical arteries and/or placental insufficiency. The results of the current study demonstrate the effects of MUC on fetal growth and organ development in scNT-derived pigs, and provide important insight into the molecular mechanisms underlying angiogenesis during umbilical cord development.
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Affiliation(s)
- Jong-Yi Park
- Animal Resource Research Center, College of Animal Bioscience and Technology, KonKuk University, Seoul, South Korea.
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Hwang KC, Cho SK, Lee SH, Park JY, Kwon DN, Choi YJ, Park C, Kim JH, Park KK, Hwang S, Park SB, Kim JH. Depigmentation of skin and hair color in the somatic cell cloned pig. Dev Dyn 2009; 238:1701-8. [PMID: 19504460 DOI: 10.1002/dvdy.21986] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Previously, we have successfully produced nine cloned piglets using Duroc donor cells. Among these clones, one showed distinct depigmentation of the skin and hair color during puberty. In this study, we selected a clone with depigmentation to investigate the etiology of the anomaly in somatic cell nuclear transfer. We hypothesized that genes related to Waardenburg syndrome (Mitf, Pax-3, Sox-10, Slug, and Kit) are closely associated with the depigmentation of pig, which was derived from somatic cell nuclear transfer (scNT). Total RNA was extracted from the ear tissue of affected and unaffected scNT-derived pigs, and the transcripts encoding Mitf, Pax-3, Sox-10, and Slug, together with the Kit gene, were amplified by reverse transcription-polymerase chain reaction, sequenced, and analyzed. The cDNA sequences from the scNT pig that showed progressive depigmentation did not reveal a mutation in these genes. Although we did not find any mutations in these genes, expression of the genes implicated in Waardenburg syndrome was severely down-regulated in the affected scNT pig when compared with unaffected scNT pigs. This down-regulation of gene expression may result in a previously undescribed phenotype that shows melanocyte instability, leading to progressive loss of pigmentation.
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Affiliation(s)
- Kyu-Chan Hwang
- Department of Animal Biotechnology, KonKuk University, Seoul, Korea
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Lee SU, Kang DG, Cho SK. Abstract: P489 COMPARISON OF ROSUVASTATIN PLUS OMEGA-3 FATTY ACIDS COMBINATION THERAPY AND ROSUVASTATIN MONOTHERAPY IN THE TREATMENT OF MIXED HYPERLIPIDEMIA: A 8 WEEKS RANDOMIZED TRIAL. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70784-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yun WS, Kim YW, Park KB, Cho SK, Do YS, Lee KB, Kim DI, Kim DK. Clinical and angiographic follow-up of spontaneous isolated superior mesenteric artery dissection. Eur J Vasc Endovasc Surg 2009; 37:572-7. [PMID: 19208448 DOI: 10.1016/j.ejvs.2008.12.010] [Citation(s) in RCA: 154] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2008] [Accepted: 12/15/2008] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To observe the clinical features and angiographic findings in patients with a spontaneous isolated superior mesenteric artery dissection (SISMAD) and to identify any correlation between them. METHODS From a single institution, 32 patients (22 symptomatic patients at presentation; mean age 54years; men 97%) with SISMAD were retrospectively reviewed. All patients were available for clinical follow-up after treatment (conservative, n=28, 88%, open or endovascular superior mesenteric artery (SMA) reconstruction, n=4, 12%), and follow-up CT scans were available in 28 patients (mean 22months, range 1-80months). RESULTS We found a positive correlation between pain severity and dissection length (p=0.03, rho=0.50, Spearman's partial correlation analysis). After conservative treatment, only one patient (3%) required bowel resection, and there was no difference in outcome between patients who were treated with anticoagulation or anti-platelet therapy and those who were not (p=1.00, Fisher's exact test). No patients had progression of their lesion on the follow-up CT angiography. CONCLUSIONS In SISMAD patients, dissection length is positively associated with more severe clinical symptoms. After conservative treatment, we observed a benign clinical course and no CT progression of the dissection, even without anticoagulation or anti-platelet therapy. Based on our observation, patients with SISMAD can be treated conservatively without anticoagulation therapy.
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Affiliation(s)
- W S Yun
- Division of Vascular Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Ilwon-dong #50, Gangnam-gu, Seoul 135-710, South Korea
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Hur CG, Choe C, Kim GT, Cho SK, Park JY, Hong SG, Han J, Kang D. Expression and localization of two-pore domain K(+) channels in bovine germ cells. Reproduction 2008; 137:237-44. [PMID: 18987255 DOI: 10.1530/rep-08-0035] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Two-pore domain K(+) (K(2P)) channels that help set the resting membrane potential of excitable and nonexcitable cells are expressed in many kinds of cells and tissues. However, the expression of K(2P) channels has not yet been reported in bovine germ cells. In this study, we demonstrate for the first time that K(2P) channels are expressed in the reproductive organs and germ cells of Korean cattle. RT-PCR data showed that members of the K(2P) channel family, specifically KCNK3, KCNK9, KCNK2, KCNK10, and KCNK4, were expressed in the ovary, testis, oocytes, embryo, and sperm. Out of these channels, KCNK2 and KCNK4 mRNAs were abundantly expressed in the mature oocytes, eight-cell stage embryos, and blastocysts compared with immature oocytes. KCNK4 and KCNK3 were significantly increased in eight-cell stage embryos. Immunocytochemical data showed that KCNK2, KCNK10, KCNK4, KCNK3, and KCNK9 channel proteins were expressed at the membrane of oocytes and blastocysts. KCNK10 and KCNK4 were strongly expressed and distributed in oocyte membranes. These channel proteins were also localized to the acrosome sperm cap. In particular, KCNK3 and KCNK4 were strongly localized to the post-acrosomal region of the sperm head and the equatorial band within the sperm head respectively. These results suggest that K(2P) channels might contribute to the background K(+) conductance of germ cells and regulate various physiological processes, such as maturation, fertilization, and development.
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Affiliation(s)
- Chang-Gi Hur
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company Ltd, Seoul, South Korea
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Kim YK, Jun IG, Kim SR, Hwang JH, Cho SK, Han SM, Hwang GS. Using 100% Oxygen does not Alter the Cardiovascular Autonomic Regulation during Non-invasively Simulated Haemorrhage in Healthy Volunteers. J Int Med Res 2008; 36:227-236. [DOI: 10.1177/147323000803600203] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
Abstract
We tested the effect of 100% oxygen on heart rate (HR), arterial blood pressure (ABP), cardiac output (CO), stroke volume (SV), total peripheral resistance (TPR), HR variability (HRV), systolic blood pressure variability (SBPV) and baroreflex sensitivity (BRS) in 20 healthy volunteers during simulated haemorrhage induced by −40 mmHg lower body negative pressure (LBNP). HRV in the high frequency region (HRVHF), BRS, ABP and TPR were significantly increased, SBPV in the low frequency region (SBPVLF), CO and SV were unchanged, and HR was significantly decreased by 100% oxygen administration during normovolaemia. HRVHF, BRS, CO and SV were significantly decreased, SBPVLF and ABP were unchanged, and HR and TPR were significantly increased by LBNP during 21% or 100% oxygen administration. There were no significant differences in cardiovascular autonomic and haemodynamic responses to LBNP during 21% or 100% oxygen administration, suggesting that 100% oxygen does not alter normal cardiovascular autonomic responses during simulated haemorrhage.
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Affiliation(s)
- YK Kim
- Department of Anaesthesiology and Pain Medicine, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Korea
| | - IG Jun
- Department of Anaesthesiology and Pain Medicine, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Korea
| | - SR Kim
- Department of Obstetrics and Gynaecology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - JH Hwang
- Department of Anaesthesiology and Pain Medicine, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Korea
| | - SK Cho
- Department of Anaesthesiology and Pain Medicine, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Korea
| | - SM Han
- Department of Anaesthesiology and Pain Medicine, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Korea
| | - GS Hwang
- Department of Anaesthesiology and Pain Medicine, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Korea
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Cho SK, Kim JH, Park JY, Choi YJ, Bang JI, Hwang KC, Cho EJ, Sohn SH, Uhm SJ, Koo DB, Lee KK, Kim T, Kim JH. Serial cloning of pigs by somatic cell nuclear transfer: restoration of phenotypic normality during serial cloning. Dev Dyn 2008; 236:3369-82. [PMID: 17849457 DOI: 10.1002/dvdy.21308] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Somatic cell nuclear transfer (scNT) is a useful way to create cloned animals. However, scNT clones exhibit high levels of phenotypic instability. This instability may be due to epigenetic reprogramming and/or genomic damage in the donor cells. To test this, we produced transgenic pig fibroblasts harboring the truncated human thrombopoietin (hTPO) gene and used them as donor cells in scNT to produce first-generation (G1) cloned piglets. In this study, 2,818 scNT embryos were transferred to 11 recipients and five G1 piglets were obtained. Among them, a clone had a dimorphic facial appearance with severe hypertelorism and a broad prominent nasal bridge. The other clones looked normal. Second-generation (G2) scNT piglets were then produced using ear cells from a G1 piglet that had an abnormal nose phenotype. We reasoned that, if the phenotypic abnormality of the G1 clone was not present in the G2 and third-generation (G3) clones, or was absent in the G2 clones but reappeared in the G3 clones, the phenotypic instability of the G1 clone could be attributed to faulty epigenetic reprogramming rather than to inherent/accidental genomic damage to the donor cells. Blastocyst rates, cell numbers in blastocyst, pregnancy rates, term placenta weight and ponderal index, and birth weight between G1 and G2 clones did not differ, but were significantly (P < 0.05) lower than control age- and sex-matched piglets. Next, we analyzed global methylation changes during development of the preimplantation embryos reconstructed by donor cells used for the production of G1 and G2 clones and could not find any significant differences in the methylation patterns between G1 and G2 clones. Indeed, we failed to detect the phenotypic abnormality in the G2 and G3 clones. Thus, the phenotypic abnormality of the G1 clone is likely to be due to epigenetic dysregulation. Additional observations then suggested that expression of the hTPO gene in the transgenic clones did not appear to be the cause of the phenotypic abnormality in the G1 clones and that the abnormality was acquired by only a few of the G1 clone's cells during its gestational development.
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Affiliation(s)
- Seong-Keun Cho
- Division of Applied Life Science, College of Agriculture and Life Science, Gyeongsang National University, Jinju, GyeongNam, South Korea
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Chae JI, Cho YK, Cho SK, Kim JH, Han YM, Koo DB, Lee KK. Proteomic analysis of pancreas derived from adult cloned pig. Biochem Biophys Res Commun 2008; 366:379-87. [DOI: 10.1016/j.bbrc.2007.11.114] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2007] [Accepted: 11/20/2007] [Indexed: 01/08/2023]
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Kumar BM, Yoo JG, Ock SA, Kim JG, Song HJ, Kang EJ, Cho SK, Lee SL, Cho JH, Balasubramanian S, Rho GJ. In vitro differentiation of mesenchymal progenitor cells derived from porcine umbilical cord blood. Mol Cells 2007; 24:343-50. [PMID: 18182849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Abstract
Mesenchymal stem/progenitor cells (MPCs) were isolated from porcine umbilical cord blood (UCB) and their morphology, proliferation, cell cycle status, cell-surface antigen profile and expression of hematopoietic cytokines were characterized. Their capacity to differentiate in vitro into osteocytes, adipocytes and chondrocytes was also evaluated. Primary cultures of adherent porcine MPCs (pMPCs) exhibited a typical fibroblast-like morphology with significant renewal capacity and proliferative ability. Subsequent robust cell growth was indicated by the high percentage of quiescent (G0/G1) cells. The cells expressed the mesenchymal surface markers, CD29, CD49b and CD105, but not the hematopoietic markers, CD45 and CD133 and synthesized hematopoietic cytokines. Over 21 days of induction, the cells differentiated into osteocytes adipocytes and chondrocytes. The expression of lineage specific genes was gradually upregulated during osteogenesis, adipogenesis and chondrogenesis. We conclude that porcine umbilical cord blood contains a population of MPCs capable of self-renewal and of differentiating in vitro into three classical mesenchymal lineages.
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Mohana Kumar B, Song HJ, Cho SK, Balasubramanian S, Choe SY, Rho GJ. Effect of histone acetylation modification with sodium butyrate, a histone deacetylase inhibitor, on cell cycle, apoptosis, ploidy and gene expression in porcine fetal fibroblasts. J Reprod Dev 2007; 53:903-13. [PMID: 17558190 DOI: 10.1262/jrd.18180] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The present study evaluated the effective dose of sodium butyrate (NaB), a histone deacetylase (HDAC) inhibitor, for determination of the level of enhancement of histone acetylation in porcine fetal fibroblasts (PFFs) based on their morphology, growth, apoptosis and cell cycle status. Cells were analyzed for their histone acetylation levels at H3, H4 and H2A and expression of genes related to histone deacetylation (HDAC1, HDAC2 and HDAC3), pro-apoptosis (Bax and Bak) and anti-apoptosis (Bcl-2). PFFs at passage 3-4 were cultured with 0, 0.5, 1.0, 2.0 and 3.0 mM NaB for 96 h. NaB inhibited cell proliferation at all tested concentrations in a dose-dependent manner. However, there was slow cell growth for PFFs treated with 2.0 and 3.0 mM NaB compared with those of untreated PFFs and those treated with other lower concentrations (0.5 and 1.0 mM). More than 85% of the cells that were untreated or treated with 0.5 or 1.0 mM NaB had intact membranes, whereas, approximately 30% of the cells treated with 2.0 or 3.0 mM NaB had increased cell sizes and a more flattened and elongated appearance. NaB induced apoptosis in a dose-dependent manner; the rates of apoptosis were 2.5 +/- 0.4% for 1.0 mM NaB, 7.6 +/- 1.1% for 2.0 mM NaB and 11.2 +/- 1.4% for 3.0 mM NaB. The chromosomal sets of PFFs treated with 0.5 and 1.0 mM NaB were normal, whereas a lower proportion of PFFs treated with 2.0 and 3.0 mM were classified as normal. NaB at 0.5 and 1.0 mM showed little effect on cell cycle. However, 2.0 and 3.0 mM resulted in an increased cell population at the G(0)/G(1) phase. Increased NaB concentrations led to elevated acetylation of H3, H4 and H2A. NaB altered the expression of histone deacetylation and apoptosis-related genes. In conclusion, 1.0 mM NaB induced histone hyperacetylation in the PFFs and produced less deleterious effects than other concentrations; these PFFs might serve as suitable donors for porcine somatic cell nuclear transfer (SCNT).
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Affiliation(s)
- Basavarajappa Mohana Kumar
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Korea
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Jin HF, Kumar BM, Kim JG, Song HJ, Jeong YJ, Cho SK, Balasubramanian S, Choe SY, Rho GJ. Enhanced development of porcine embryos cloned from bone marrow mesenchymal stem cells. Int J Dev Biol 2007; 51:85-90. [PMID: 17183468 DOI: 10.1387/ijdb.062165hj] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In the present study, we have characterized an isolated population of porcine bone marrow mesenchymal stem cells (MSCs) for multilineage commitment and compared the developmental potential of cloned embryos with porcine MSCs and fetal fibroblasts (FFs). MSCs exhibited robust alkaline phosphatase activity and later transformed into mineralized nodules following osteoinduction. Furthermore, MSCs underwent adipogenic and chondrogenic differentiation by producing lipid droplets and proteoglycans, respectively. Primary cultures of FFs from a female fetus at ~30 day of gestation were established. Donor cells at 3-4 passage were employed for nuclear transfer (NT). Cell cycle analysis showed that the majority of MSCs in confluence were in the G0/G1 stage. Cumulus-oocyte complexes were matured and fertilized in vitro (IVF) as control. The cleavage rate was significantly (P<0.05) higher in IVF than in NT embryos with MSCs and FFs (84.54.6% vs. 52.25.4% and 50.85.2%, respectively). However, blastocyst rates in IVF and NT embryos derived from MSCs (20.62.5% and 18.43.0%) did not differ, but were significantly (P<0.05) higher than NT derived from FFs (9.52.1%). Total cell number and the ratio of ICM to total cells among blastocysts cloned from MSCs (34.45.2 and 0.380.08, respectively) were significantly (P<0.05) higher than those from FFs (22.65.5 and 0.180.12, respectively). Proportions of TUNEL positive cells in NT embryos from FFs (7.31.8%) were significantly (P<0.05) higher than in MSCs (4.61.3%) and IVF (2.50.9%). The results clearly demonstrate that multipotent bone marrow MSCs have a greater potential as donor cells than FFs in achieving enhanced production of cloned porcine embryos.
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Affiliation(s)
- Hai-Feng Jin
- Institute of Animal Medicine, College of Veterinary Medicine, Chinju, Republic of Korea
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Lee SY, Park JY, Choi YJ, Cho SK, Ahn JD, Kwon DN, Hwang KC, Kang SJ, Paik SS, Seo HG, Lee HT, Kim JH. Comparative proteomic analysis associated with term placental insufficiency in cloned pig. Proteomics 2007; 7:1303-15. [PMID: 17380531 DOI: 10.1002/pmic.200601045] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Somatic cell-derived nuclear transfer (scNT) is a method of animal cloning in which the oocyte reprograms a somatic cell nucleus to divide and execute developmental programs. Despite many successes in this field, cloning by scNT remains very inefficient. Unlike other cloned animals, pigs derived by scNT have placentas with severe villous hypoplasia. To obtain a better understanding of the protein networks involved in this phenomenon, we assessed global protein expression profiles in term placentas from scNT-derived and control animals. Proteomic analysis of term placentas from scNT-derived animals identified 43 proteins that were differentially expressed compared to control animals. Among them, 14-3-3 proteins and Annexin V, which are closely involved in the apoptotic signaling pathway, were significantly down- and up-regulated, respectively. Western blot analysis and immunohistochemistry indicated that down-regulation of 14-3-3 proteins in scNT-derived placentas induced apoptosis of cytotrophoblast cells via mitochondria-mediated apoptosis. Taken together, our results suggest that placental insufficiency in scNT-derived placentas may be due to apoptosis, induced in part by the down-regulation of 14-3-3 proteins and up-regulation of Annexin V. They also indicate that proteomic maps represent an important tool for future studies of placental insufficiency and pathology.
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Affiliation(s)
- So-Young Lee
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Seoul, Korea
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Lee YS, Ock SA, Cho SK, Jeon BG, Kang TY, Balasubramanian S, Choe SY, Rho GJ. Effect of Donor Cell Types and Passages on Preimplantation Development and Apoptosis in Porcine Cloned Embryos. Asian Australas J Anim Sci 2007. [DOI: 10.5713/ajas.2007.711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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